could job
Regular verb: job - jobbed- jobbed

Affirmation 	
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I could job
you could job
he could job
we could job
you could job
they could job 	I could be jobbing
you could be jobbing
he could be jobbing
we could be jobbing
you could be jobbing
they could be jobbing	I could have jobbed
you could have jobbed
he could have jobbed
we could have jobbed
you could have jobbed
they could have jobbed	I could have been jobbing
you could have been jobbing
he could have been jobbing
we could have been jobbing
you could have been jobbing
they could have been jobbing	

Negation 	
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I could not job
you could not job
he could not job
we could not job
you could not job
they could not job 	I could not be jobbing
you could not be jobbing
he could not be jobbing
we could not be jobbing
you could not be jobbing
they could not be jobbing	I could not have jobbed
you could not have jobbed
he could not have jobbed
we could not have jobbed
you could not have jobbed
they could not have jobbed	I could not have been jobbing
you could not have been jobbing
he could not have been jobbing
we could not have been jobbing
you could not have been jobbing
they could not have been jobbing	

Interrogative form 	
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could I job?
could you job?
could he job?
could we job?
could you job?
could they job? 	could I be jobbing?
could you be jobbing?
could he be jobbing?
could we be jobbing?
could you be jobbing?
could they be jobbing? 	could I have jobbed?
could you have jobbed?
could he have jobbed?
could we have jobbed?
could you have jobbed?
could they have jobbed? 	could I have been jobbing?
could you have been jobbing?
could he have been jobbing?
could we have been jobbing?
could you have been jobbing?
could they have been jobbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not job?
could you not job?
could he not job?
could we not job?
could you not job?
could they not job? 	could I not be jobbing?
could you not be jobbing?
could he not be jobbing?
could we not be jobbing?
could you not be jobbing?
could they not be jobbing? 	could I not have jobbed?
could you not have jobbed?
could he not have jobbed?
could we not have jobbed?
could you not have jobbed?
could they not have jobbed? 	could I not have been jobbing?
could you not have been jobbing?
could he not have been jobbing?
could we not have been jobbing?
could you not have been jobbing?
could they not have been jobbing?